Hyundai Santa Fe: Heated Oxygen Sensor (HO2S). Description and Operation
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed
both upstream and downstream of the Manifold Catalytic Converter. The sensor
output voltage varies in accordance with the air/fuel ratio.
The sensor must be hot in order to operate normally. To keep it hot, the
sensor has a heater which is controlled by the ECM via a duty cycle signal.
When the exhaust gas temperature is lower than the specified value, the heater
warms the sensor tip.
Knock Sensor (KS). Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Refer to Engine Mechanical System - "Intake Manifold") 3. Disconnect the ...
Heated Oxygen Sensor (HO2S). Specifications
Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] A/F Ratio (λ) Output Voltage(V) RICH Approx. 0.9 LEAN Approx. 0.04 ...
See also:
Overdrive Clutch Control Solenoid Valve(OD/C_VFS). Schematic Diagrams
Circuit Diagram ...
To remove the cargo security screen from the luggage tray
1. Pull up the screen board. 2. Push in the guide pin. 3. While pushing the guide pin, pull out the cargo security screen. WARNING Do not place objects on the cargo security screen. Such objects may be ...
Jack and tools
The jack, jack handle, and wheel lug nut wrench are stored in the luggage compartment. Pull up the luggage box cover to find these equipment. (1) Jack handle (2) Jack (3) Wheel lug nut wrench (4) Socket ...
